scholarly journals A High Rated Solar Water Distillation Unit for Solar Homes

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Abhishek Saxena ◽  
Navneet Deval
Keyword(s):  
Solar Energy ◽  
Fossil Fuels ◽  
Ph Value ◽  
Experimental Testing ◽  
Low Cost ◽  
Energy Systems ◽  
Present System ◽  
Distilled Water ◽  
Solar Pv ◽  
Solar Water

India is presently focusing on complete utilization of solar energy and saving fossil fuels, which are limited. Various solar energy systems like solar cookers, solar water heaters, solar lanterns, solar PV lights, and solar lamps are continuously availing by the people of India at a low cost and on good subsidies. Apart from this, India is a solar energy promising country with a good number of solar homes (carrying solar energy systems) in its various locations. The present paper focuses on a unique combination of solar dish cooker (SDC) and solar water heater (SWH) to produce distilled water with a high distillate and a high daily productivity. The procedure has been discussed on the basis of experimental testing to produce distilled water by combining an evacuated type SWH and a SDC. Experimentation has been carried out in MIT, Moradabad (longitude, 28.83°N, and latitude, 78.78°E) by developing the same experimental setup on behalf of solar homes. The daily productivity of distilled water was found around 3.66 litres per day in full sunshine hours for an approximated pH value of 7.7 and a ppm value of 21. The payback period (PBP) has been estimated around 1.16 years of the present system.

scholarly journals Solar Assisted Power Generation System in Hot Desert Climate: A Cost-Benefit Perspective

2021 ◽  
Author(s):  
Ramzi Alahmadi ◽  
◽  
Kamel Almutairi ◽  
Keyword(s):  
Solar Energy ◽  
Fossil Fuels ◽  
Cost Benefit ◽  
Energy Systems ◽  
Clean Energy ◽  
Economic Feasibility ◽  
Economic Viability ◽  
Solar Pv ◽  
Pv System ◽  
Pv Systems

With the increasing global concerns about greenhouse gas emissions caused by the extensive use of fossil fuels, many countries are investing in the deployment of clean energy sources. The utilization of abundant solar energy is one of the fastest growing deployed renewable sources due its technological maturity and economic competitivity. In addition to report from the National Renewable Energy Laboratory (NREL), many studies have suggested that the maturity of solar energy systems will continue to develop, which will increase their economic viability. The focus of analysis in this paper is countries with hot desert climates since they are the best candidates for solar energy systems. The capital of Saudi Arabia, Riyadh is used as the case study due to the country’s ambitious goals in this field. The main purpose of this study is to comprehensively analyze the stochastic behavior and probabilistic distribution of solar irradiance in order to accurately estimate the expected power output of solar systems. A solar Photovoltaic (PV) module is used for the analysis due to its practicality and widespread use in utility-scale projects. In addition to the use of a break-even analysis to estimate the economic viability of solar PV systems in hot desert climates, this paper estimates the indifference point at which the economic feasibility of solar PV systems is justified, compared with the fossil-based systems. The numerical results show that the break-even point of installing one KW generation capacity of a solar PV system is estimated to pay off after producing 16,827 KWh, compared to 15,422 KWh for the case of fossil-based systems. However, the increased cost of initial investment in solar PV systems deployment starts to be economically justified after producing 41,437 KWh.

Sandwich hydrogel with confined plasmonic Cu/carbon cells for efficient solar water purification

2021 ◽  
Author(s):  
Cheng Tian ◽  
Chengcheng Li ◽  
Delun Chen ◽  
Yifan Li ◽  
LEI XING ◽  
...  
Keyword(s):  
Solar Energy ◽  
Water Purification ◽  
Low Cost ◽  
Energy Utilization ◽  
Solar Water ◽  
Solar Energy Utilization

Designing low-cost and efficient evaporation system to maximize solar energy utilization is of great importance for the emerging solar water purification technologies. Herein, we demonstrate a universal sandwich hydrogel by...

scholarly journals Experimental Studies on an Inclined Collector Divergent Chimney Pilot Plant

2021 ◽  
Vol 850 (1) ◽  
pp. 012008
Author(s):  
N Rajamurugu
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Low Cost ◽  
Renewable Energy Sources ◽  
Experimental Studies ◽  
High Mass ◽  
Energy Sources ◽  
Solar Pv ◽  
Solar Chimney ◽  
Energy Agency

Abstract Renewable energy sources become suitable valid options to reduce the dependency on fossil fuels or petroleum products. The International Renewable Energy Agency reports that the world will harvest 40% of energy from renewable energy sources by 2030. Conventional technologies such as solar PV technology, consumes higher capital per unit (kWh) of electricity generation cost significantly higher than the traditional sources. Hence, solar chimney power generation system can be suitable option for generating low cost energy. Solar chimneys are developed and tested by different researchers in enhancing the performance of the system. Studies on the geometric modifications of the collector, and chimney are limited. The aim of this paper is to analyse the experimental data obtained from a divergent solar chimney. Experimentation is carried under sunlight in an open atmosphere. The airflow rates in the chimneys are tested under different collector outlet height. The experimental results showed that a chimney with higher collector openings was performed well than other models. The computational analysis is also carried out using ANSYS Fluent software package which shows that the collector opening of 2.5m is recommended for higher high mass flow rate and system efficiency.

Bifunctional Cu2-xSe-decorated hierarchical TiO2 nanotube mesh with solar water evaporation and photodegradation effects for clean water generation

2019 ◽  
Vol 19 (7) ◽  
pp. 2001-2008
Author(s):  
Peng Ren ◽  
Xiuchun Yang
Keyword(s):  
Solar Energy ◽  
Low Cost ◽  
Water Shortage ◽  
Tio2 Nanotube ◽  
Solar Irradiation ◽  
Localized Surface Plasmon ◽  
Water Evaporation ◽  
Solar Water ◽  
Feasible Solutions ◽  
Simulated Solar Irradiation

Abstract The desalination and purification of sea or brackish water by utilizing solar energy are considered to be the most feasible solutions to overcome the problems of water shortage and pollution. In this study, a bifunctional Cu2-xSe-decorated hierarchical TiO2 nanotube mesh (CTNM) was designed and synthesized successfully for both solar water evaporation and photodegradation. Cu2-xSe enhances solar light absorption and solar water evaporation performance as a low-cost absorber because of its localized surface plasmon resonance (LSPR) effect. Meanwhile, the formation of the p-Cu2-xSe/n-TiO2 heterojunction improves the photodegradation performance by increasing separation and transport of photogenerated charge carriers. Hence, CTNM has a relatively high solar water evaporation conversion efficiency of 83.06% and also can photodegrade 95% of methyl orange after 3 h under 2.5 kW m−2 simulated solar irradiation, which demonstrate the extremely high utilization ratio of solar energy of CTNM.

A Software Optimization of the Solar Energy System Performance

2014 ◽  
Vol 899 ◽  
pp. 199-204
Author(s):  
Lukáš Skalík ◽  
Otília Lulkovičová
Keyword(s):  
Solar System ◽  
Solar Energy ◽  
System Performance ◽  
Solar Collector ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Thermal Protection ◽  
Energy Systems ◽  
Energy System ◽  
Hot Water

The energy demand of buildings represents in the balance of heat use and heat consumption of energy complex in the Slovak national economy second largest savings potential. Their complex energy demands is the sum of total investment input to ensure thermal protection and annual operational demands of particular energy systems during their lifetime in building. The application of energy systems based on thermal solar systems reduces energy consumption and operating costs of building for support heating and domestic hot water as well as savings of non-renewable fossil fuels. Correctly designed solar energy system depends on many characteristics, i. e. appropriate solar collector area and tank volume, collector tilt and orientation as well as quality of used components. The evaluation of thermal solar system components by calculation software shows how can be the original thermal solar system improved by means of performance. The system performance can be improved of more than 31 % than in given system by changing four thermal solar system parameters such as heat loss coefficient and aperture area of used solar collector, storage tank volume and its height and diameter ratio.

scholarly journals Modeling Urban Solar Energy with High Spatiotemporal Resolution

2021 ◽  
Author(s):  
Annie Chow
Keyword(s):  
Solar Energy ◽  
Fossil Fuels ◽  
Energy Resource ◽  
Electricity Consumption ◽  
Software Tool ◽  
Solar Pv ◽  
Spatiotemporal Resolution ◽  
High Spatiotemporal Resolution ◽  
Case Study Area

Alternative sources of energy are being sought after in the world today, as the availability of fossil fuels and other non-renewable resources are declining. Solar energy offers a promising solution to this search as it is a less polluting renewable energy resource and can be easily converted into electricity through the usage of photovoltaic systems. This thesis focuses on the modeling of urban solar energy with high spatiotemporal resolution. A methodology was developed to estimate hourly solar PV electricity generation potential on rooftops in an urban environment using a 3-D model. A case study area of Ryerson University, Toronto was chosen and the incident solar radiation upon each building rooftop was calculated using a software tool called Ecotect Analysis 2011. Secondly, orthophotos of the case study area were digitized using Geographic Information Systems in order to eliminate undesirable rooftop objects within the model. Lastly, a software tool called HOMER was used to generate hourly solar PV electricity estimates using the values generated by the other two software tools as input parameters. It was found that hourly solar PV output followed the pattern of a binomial curve and that peak solar generation times coincided with summer peak electricity consumption hours in Ontario.

scholarly journals Study of Indonesia’s Solar Energy Implementation Using Identification of Potency, Policies, and Cost-Benefit Analysis

2021 ◽  
Vol 10 (3) ◽  
pp. 125-139
Author(s):  
Mochammad Donny Anggoro ◽  
Diana Siregar ◽  
Regina Ninggar ◽  
Satriyo Wicaksono ◽  
Soo Hee Lee
Keyword(s):  
Solar Energy ◽  
Fossil Fuels ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Solar Pv ◽  
Benefit Analysis ◽  
Levelized Cost Of Electricity ◽  
Average Value ◽  
Pv Systems ◽  
Solar Radiation Intensity

The solar PV systems are semiconductor devices that precisely convert sunlight into electricity, through the transfer of electrons. They provide several advantages, such as high modularity, zero noise, and adequate availability of solar resources in Indonesia. Therefore, this study aims to determine the potency, policy perspective, and Cost-Benefit Analysis (CBA) of the solar energy implementation for electricity generation. A statistical analysis was used for measuring potency, as well as reviewing opportunistic policies and barriers. A review of some CBA-based journals was also carried out, to determine that the development of solar power electricity had more benefit than fossil fuels and LCOE (Levelized Cost Of Electricity). The results of the 10-days average value calculation in 2019 were 388-563 W/m2, with the maximum values at 1137-1604 W/m2. Meanwhile the analysis of the maximum hourly averages for Western, Central, and Eastern Indonesia were 570-719, 634-758, and 559-627 W/m2 at 11.00-12.00 WIB, 11.00-13.00 WITA, and 12.00-13.00 WIT, respectively. The potency of solar radiation intensity in Indonesia was averagely 150-750 W/m2, as the highest values were found in East Nusa Tenggara, Maluku, and Merauke.

scholarly journals Development of a solar concentrator with tracking system

2016 ◽  
Vol 7 (2) ◽  
pp. 233-245 ◽  
Author(s):  
Flávia V. Barbosa ◽  
João L. Afonso ◽  
Filipe B. Rodrigues ◽  
José C. F. Teixeira
Keyword(s):  
Solar Energy ◽  
Fossil Fuels ◽  
Tracking System ◽  
Low Cost ◽  
Experimental Tests ◽  
Weather Conditions ◽  
Electrical Energy ◽  
Real Problem ◽  
Stored Energy ◽  
Geometrical Properties

Abstract. Solar Energy has been, since the beginning of human civilization, a source of energy that raised considerable interest, and the technology used for their exploitation has developed constantly. Due to the energetic problems which society has been facing, the development of technologies to increase the efficiency of solar systems is of paramount importance. The solar concentration is a technology that has been used for many years by the scientist, because this system enables the concentration of solar energy in a focus, which allows a significant increase in energy intensity. The receiver, placed at the focus of the concentrator, can use the stored energy to produce electrical energy through Stirling engine, for example, or to produce thermal energy by heating a fluid that can be used in a thermal cycle. The efficiency of solar concentrators can be improved with the addition of a dual axis solar tracker system which allows a significant increase in the amount of stored energy. In response to the aforementioned, this paper presents the design and construction of a solar dish concentrator with tracking system at low cost, the optical and thermal modelling of this system and a performance analysis through experimental tests. The experimental validation allows to conclude that the application of a tracking system to the concentrator is very important since a minimum delay of the solar radiation leads to important losses of system efficiency. On the other hand, it is found that the external factors can affect the final results which include the optical and geometrical properties of the collector, the absorptivity and the position of the receiver as well as the weather conditions (essentially the wind speed and clouds). Thus, the paper aims to present the benefits of this technology in a world whose the consumption of energy by fossil fuels is a real problem that society needs to face.

scholarly journals Fluidyne Heat Engine Construction and Performance

1969 ◽  
Vol 69 (1) ◽  
pp. 45-55
Author(s):  
Y. Shahabasi
Keyword(s):  
Puerto Rico ◽  
Solar Energy ◽  
Fossil Fuels ◽  
Low Cost ◽  
Heat Engine ◽  
Rapid Rate ◽  
The World ◽  
Engine Construction ◽  
And Performance ◽  
Effective Use

Strictly speaking, all forms of energy are derived from the sun. However, our most common forms of energy, fossil-fuels, received their solar input eons ago and have changed their characteristics so that they are now in concentrated form. It is apparent that these stored concentrated energy forms are now being used at such a rapid rate that they will be depleted in the not-toodistant future. It would be useful to utilize the incoming solar energy directly. The effective use of the sun's energy in agriculture by any economically possible means will help the farmers continue their work with no disruption because of the lack of concentrated form of energy. The fluidyne heat engine utilizes solar energy to pump water. The simplicity, reliability, and low cost of this engine are of primary importance for the farmers in the part of the world whereas solar energy is abundant such as Puerto Rico.

Solar Energy on the Dairy Farm

1979 ◽  
Vol 42 (7) ◽  
pp. 604-605
Author(s):  
HARLIN A. FIENE
Keyword(s):  
Solar Energy ◽  
Fossil Fuels ◽  
Dairy Farm ◽  
Energy Systems ◽  
Tax Incentives ◽  
Efficient Production ◽  
Alternative Source ◽  
Heating Systems ◽  
Solar Systems ◽  
The World

Dairymen now have an alternative source of energy to assist them in efficient production of milk. Solar energy is being used to heat water and to space-heat milk houses and milking parlors. Used in conjunction with standard heating systems, solar systems can supply from 30 to 70% of the water- and space-heating requirements on a dairy farm. Tax incentives and rising costs of electricity and fossil fuels are making solar energy systems economically feasible for the modern dairyman. During the 1970s the world has come to recognize the reserves of fossil fuels used for energy are limited. The “energy crisis” caused these sources of energy to spiral in cost. Today, alternate sources of energy are being investigated and some are proving to be economically feasible.

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